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Re: Plumbing Fittings [message #130902 is a reply to message #130709] Sun, 19 June 2011 15:41 Go to previous messageGo to previous message
Matt Colie is currently offline  Matt Colie   United States
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
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Senior Member
Denis UK wrote on Sat, 18 June 2011 10:11

Advice needed! Need to replace some pipework in coach (Water), problem i have here (UK) is our pushfit pipe/fittings sizes differ from yours. Nothing to do with metric/imperial, its that our 1/2" refers to the external measurement whereas yours is the bore size. Have tried U/S E.bay without success, can anyone direct me to a supplier over there?

OH Boy Denis,

I also have a '73 and have had to do some (fortunately not a great deal) of plumbing work. Mine is a 23' so somethings may be different, but the diagram in the book seems to be correct. But it is all supposed to be copper tubing (with few exceptions - like the potable pump connections).

At the time this was assembled, copper came as both tubing an pipe, but my coach is all tubing. Tubing is all described as OD. All flexible (it was when it was new) copper is tubing. This I am very sure of.

There is, however, a problem hiding in the copper water systems. Many have been less than effectively winterized on one or more occasions, and the freeze expanded the soft copper. Now, it is too large for the sweat or flare fitting, but it isn't pipe size either.

What did I do about it?
Two things..
In one place I worked a gauge (a wrench would do) along the expanded line until I found a place that was close enough to size for fitting to work and then I replaced the line from there on.
Another place I could not do that, so I used a the block (the part with the holes) from one of my flaring block sets to swage the line back to nominal size. (My father would have either bought me a drink or beat me and I'm not sure which.) I'm sure that there might be other ways to do this.

Just be sure than anything shipped to you is a market as used antique vehicle parts.

Matt


Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
 
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